Polyketone polymerization catalyst

Abstract

Provided are a novel polyketone polymerization catalyst and a method of preparing a ligand, which can reduce production costs and can enable commercial mass synthesis by using ((2,2-dimethyl-1,3-dioxane-5,5-diyl)bis(methylene))bis(bis(2-methoxyphenyl)phosphine) as a ligand constituting the polykeytone polymerization catalyst, the ligand having a simple structure and a small molecular weight while having high activity.

What is claimed is: 
     
       1. A polyketone polymerization catalyst, consisting of:
 (A) a metal ion; 
 (B) ((2,2-dimethyl-1,3-dioxane-5,5-diyl)bis(methylene))bis(bis(2-methoxyphenyl)phosphine) represented by following Formula 1 as a ligand; and 
 (C) an acid, wherein a molar ratio of component (A) and component (B) to component (C) is 1:7 to 1:20 
 
       
         
           
           
               
               
           
         
       
     
     
       2. The polyketone polymerization catalyst of  claim 1 , wherein the metal ion of (A) is composed of a compound of Ni and Cu. 
     
     
       3. The polyketone polymerization catalyst of  claim 1 , wherein the acid of (C) is an inorganic acid having a pKa of 4 or less. 
     
     
       4. The polyketone polymerization catalyst of  claim 3 , wherein the acid of (C) is a perchloric acid, a sulfuric acid, a nitric acid, a phosphoric acid, a heteropoly acid, tetrafluorobroic acid, a hexafluorophosphoric acid, or a fluorosilicic acid. 
     
     
       5. The polyketone polymerization catalyst of  claim 1 , wherein the acid of (C) is a boron compound. 
     
     
       6. The polyketone polymerization catalyst of  claim 5 , wherein the acid of (C) is trispentafluorophenyl borane or trisphenylcarbeniumtetrakis (pentafluorophenyl) borate.